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根据国内外综放工作面采空区氮气防火技术的应用实践．确定了综放工作面采空区氮气防火合理工艺参数，对提高综放工作面采空区氮气防火效果和推进放顶煤综采在我国煤矿中的发展具有重要意义．
Application practice of nitrogen gas fire prevention technology in goaf of fully mechanized top coal caving face at home and abroad. The reasonable technological parameters of nitrogen fire prevention in goaf of fully mechanized top coal caving face are determined, which is of great significance to improve the nitrogen fire prevention effect of goaf in fully mechanized caving face and to promote the development of top coal caving mining in our coal mines.